Limit Radio Record For Free

The root of the "three-minute" length is likely derived from the original format of 78 rpm-speed phonograph records; at about 3 to 5 minutes per side, it's just long enough for the recording of a complete song. The rules of the Eurovision Song Contest do not permit entries to be longer than three minutes.

The most popular record sizes were 10 inches?which could hold about three minutes of music per side?and 12 inches, which held roughly four to five minutes per side. To get radio stations to broadcast their music and get people to buy it, musicians pretty much had to accommodate those time limits.

First, there's a historical reason behind why most hit songs are just three minutes long. In the early 1900s, music was mostly released on 10-inch records, which played at a speed of 78 rpm and could only hold three to five minutes of audio per side. ?If it went longer than that, the grooves became too close together?

The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication.

The 78 disc severely limits the length that a song can be, because only so much music can fit onto the disc. The 78 comes in two sizes: a 10-inch that holds three minutes of music and a 12-inch that holds four. In 1949, RCA introduced a 45 rpm disk that quickly overtook the 78 and made it obsolete.

If a radio station's carrier wave were to interfere with instructions from a control tower to an airplane, lives could be put at risk. The lower end of the FCC scale for radios is 88.1 MHz. Below this is reserved for television stations. Radio waves would interfere with television waves, hampering communications.

In short, copying music from the radio for private use is permissible if the artists receive a "fair compensation". In case of a lawsuit against radio music ripping technologies, the whole debate will be about the meaning of the term "fair compensation".

The standard was set many years ago when the only for popular records was the 78 RPM ten-inch single. The ?78? could only take about three minutes of music on a side until pressing it forced the grooves to be too close together, and sound fidelity was lost.